damnt as a polespear advocate my gears have begun turning again... How does the pvc hold up against impact and saltwater??? our sprinkler pipes here are pvc pipes sticking out into canals and I know with sun/water they get very brittle.
I came across this site http://www.mgs4u.com/fiberglass-tube-rod.htm they make fiberglass tubes mostly for antenna apps. with lots of diameters available. I might have to try my hand at a fiberglass polespear now.





